Facile Synthesis and Visualization of Janus Double-Brush Copolymers

Yukun Li; Efrosyni Themistou; Jiong Zou; Biswa P. Das; Marina Tsianou; Cheng Chong

doi:10.1021/mz200013e

Facile Synthesis and Visualization of Janus Double-Brush Copolymers

Yukun Li, Efrosyni Themistou, Jiong Zou, Biswa P. Das, Marina Tsianou, Cheng Chong

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

125 Citations (Scopus)

Abstract

Well-defined double-brush copolymers with each graft site carrying a polystyrene (PSt) graft and a polylactide (PLA) graft were synthesized by simultaneous reversible addition fragmentation chain transfer (RAFT) and ring-opening polymerization (ROP) processes, followed by ring-opening metathesis polymerization (ROMP) "grafting through" of the resulting diblock macromonomer (MM). Their Janus-type 1 morphologies were detected by transmission electron microscopy (TEM) imaging after thermal annealing to facilitate the intramolecular self-assembly of PSt and PLA grafts. This finding provides critical evidence to verify double-brush copolymers as Janus nanomaterials.

Original language	English
Pages (from-to)	52-56
Journal	ACS Macro Letters
Volume	1
Issue number	1
DOIs	https://doi.org/10.1021/mz200013e
Publication status	Published - Jan 2012

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AU - Li, Yukun

AU - Themistou, Efrosyni

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AU - Das, Biswa P.

AU - Tsianou, Marina

AU - Chong, Cheng

PY - 2012/1

Y1 - 2012/1

N2 - Well-defined double-brush copolymers with each graft site carrying a polystyrene (PSt) graft and a polylactide (PLA) graft were synthesized by simultaneous reversible addition fragmentation chain transfer (RAFT) and ring-opening polymerization (ROP) processes, followed by ring-opening metathesis polymerization (ROMP) "grafting through" of the resulting diblock macromonomer (MM). Their Janus-type 1 morphologies were detected by transmission electron microscopy (TEM) imaging after thermal annealing to facilitate the intramolecular self-assembly of PSt and PLA grafts. This finding provides critical evidence to verify double-brush copolymers as Janus nanomaterials.

AB - Well-defined double-brush copolymers with each graft site carrying a polystyrene (PSt) graft and a polylactide (PLA) graft were synthesized by simultaneous reversible addition fragmentation chain transfer (RAFT) and ring-opening polymerization (ROP) processes, followed by ring-opening metathesis polymerization (ROMP) "grafting through" of the resulting diblock macromonomer (MM). Their Janus-type 1 morphologies were detected by transmission electron microscopy (TEM) imaging after thermal annealing to facilitate the intramolecular self-assembly of PSt and PLA grafts. This finding provides critical evidence to verify double-brush copolymers as Janus nanomaterials.

U2 - 10.1021/mz200013e

DO - 10.1021/mz200013e

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JO - ACS Macro Letters

JF - ACS Macro Letters

IS - 1

ER -

Facile Synthesis and Visualization of Janus Double-Brush Copolymers

Abstract

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